A convenient approach to the synthesis of medium size oligodeoxyribonucleotides by improved new phosphite method. |
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| Authors: | H Hosaka Y Suzuki H Sato S Gug-Kim and H Takaku |
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| Affiliation: | Department of Industrial Chemistry, Chiba Institute of Technology, Japan. |
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| Abstract: | Improvement of the new phosphite method for the synthesis of oligodeoxyribonucleotides using the deoxyribonucleoside 3'-bis(1,1,1,3,3,3- hexafluoro-2-propyl) phosphite unit has been carried out via the hydrolysis and capping steps, without any side reaction products. The new phosphite unit and capping agent, bis(1,1,1,3,3,3-hexafluoro-2-propyl)-2-propyl phosphite, is readily activated by N-methylimdazole under very mild condition on a solid support. This operation involves a one pot reaction, which is an advantage over both the phosphite and H- phosphonate approaches. The mechanism of internucleotidic bond formation of the new phosphite method is also discussed. |
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